Back End Developer

Senior Developer (Node.js, AWS & Automation Testing)

The fun bits:

Location: Remote (UK-based, occasional team meetups)

Salary: £55,000 – £75,000 depending on experience (some flexibility)

Employment type: Full-time

Reports to: Lead Developer

About the Role

My client is seeking a Senior Developer with a strong focus on backend development, primarily using Node.js and AWS cloud technologies. While the role is heavily backend focused, experience with full-stack development or the ability to support front-end success would be advantageous. This is a hands-on technical position requiring ownership of building scalable, secure, and well-tested applications.

The successful candidate will lead automation testing efforts and promote robust test coverage and documentation throughout the codebase. They will work within a collaborative, low-ego team to deliver cloud-native solutions leveraging AWS services such as Lambda, Step Functions, S3, and messaging queues.

Key Responsibilities

• Develop and maintain backend services primarily using Node.js, with some involvement in frontend technologies such as React
• Design, implement and maintain automated test suites and testing strategies using tools like Jest, Cypress or similar
• Collaborate closely with product owners, frontend developers, and DevOps teams to deliver secure, scalable AWS-based solutions
• Drive high standards of code quality, testing, and documentation
• Participate in code reviews, pair programming, and contribute to technical decision-making
• Mentor junior team members and promote best practices in development and testing
• Actively contribute to agile ceremonies including sprint planning and retrospectives

Essential Skills & Experience

• 5+ years professional experience in JavaScript/TypeScript development with a strong focus on backend using Node.js
• Experience with React or other frontend frameworks is desirable, or at least the ability to collaborate effectively with frontend teams
• Solid knowledge and hands-on experience with AWS services such as Lambda, Step Functions, S3 and queues
• Proven experience in automation testing frameworks and strategies (Jest, Mocha, Cypress, Ghost Inspector or similar)
• Practical understanding of GraphQL and experience working with relational and NoSQL databases (PostgreSQL, MongoDB or equivalent)
• Comfortable working in an agile, collaborative environment with a pragmatic approach to problem-solving and delivery
• Strong communication skills and a collaborative mindset

Desirable

• Experience in regulated or compliance-sensitive sectors (e.g. EdTech, healthcare, finance)
• Familiarity with containerisation tools such as Docker and CI/CD pipelines
• Knowledge of security best practices (e.g. OWASP)
• Experience mentoring or leading developers

Technology Stack & Tools

• Backend: Node.js, GraphQL
• Frontend: React (optional/occasional)
• Databases: PostgreSQL, MongoDB
• Cloud: AWS (Lambda, Step Functions, S3, queues)
• Testing: Jest, Cypress, Ghost Inspector
• DevOps: GitHub Actions, AWS CodePipeline
• Monitoring: Sentry, LogRocket, Datadog
• Project management: Agile tools (e.g. Linear)

Benefits & Culture

• Competitive salary £55,000 – £75,000 with some flexibility depending on experience
• Remote-first working model with occasional meetups in Manchester (preferred but not essential)
• 25 days holiday plus bank holidays, increasing with length of service
• Early finish Fridays
• Private healthcare (after probation)
• Pension scheme and Bike-to-Work scheme
• Personal development budget and continuous learning support
• Inclusive, low-ego culture valuing collaboration and ownership